Aditiyarini, Dwi, Prasetyaningsih, Aniek, DAN Manalu, Marsauli. " The Effect of Citric Acid on Antioxidant and Antibacterial Activities of Butterfly Flower Extract (Clitoria ternatea L.)" Metamorfosa: Journal of Biological Sciences [Online], Volume 10 Nomor 2 (30 September 2023)